DL circuit of OR Gate | lect.-02 | electronics

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Video highlights-
#digital electronics
#dl circuit of or gate
#truth table
#or gate as a switch
#engineering physics #bscphysics #basic electronics

The video begins by explaining the basic working of a diode (0:19).
• A diode is made of P and N type semiconductors (0:27).
• It is in forward bias (active/conducting) when the P terminal is connected to the positive terminal of a battery and the N terminal to the negative terminal (0:40). In terms of logic, a P terminal with input '1' and N terminal with input '0' results in forward bias (1:24).
• It is in reverse bias (non-conducting) when the P terminal is connected to the negative terminal and the N terminal to the positive terminal (0:56). In terms of logic, a P terminal with input '0' and N terminal with input '1' results in reverse bias (1:38).

The video then details the construction of the DL circuit for an OR gate:
• The number of diodes used equals the number of inputs (2:27). For an OR gate, the P terminal of each diode receives an input and is connected via a source resistance (2:48).
• The N terminals of all diodes are connected together and then linked to ground through a common resistance R, where the output is measured (3:02).

Finally, the video demonstrates how this DL circuit satisfies the truth table.

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rajasthan university, mds ajmer , mgsu bikaner , mlsu udaipur, jnvu jodhpur, panjab university, Kota(open) university .

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#msc entrances, iit jam , gate , net jrf , tifr

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   • Electronics (B.Sc./IIT JAM/ MSc Entrance)  


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